title: Luminance behavior of Ce3+ doped ZnS nanostructures.
abstract: We report the synthesis and characterization of undoped and various levels of Ce(3+) doped ZnS nanocrystal. The structure and size of the products were studied by X-ray diffraction (XRD). The existence of functional groups was identified by Fourier transform infrared spectrometry (FT-IR). The UV-Visible measurements reveal that the synthesized products are blue shifted when compared with bulk phase of ZnS as a result of quantum confinement effect. The PL studies show an enhancement in the intensity of emission band in the UV region on increased Ce(3+) doping. The morphology of the products was evaluated by Field emission scanning electron microscope (FESEM) and High resolution transmission electron microscopy (FESEM). The presence of Ce(3+) was confirmed by Energy dispersive spectral analysis (EDS). The thermal stability of pure and doped products was analyzed by thermo gravimetric and differential thermal analysis (TG-DTA).
authors.affiliation: Department of Physics, Annamalai University, Annamalai Nagar, Chidambaram 608 002, Tamilnadu, India. Electronic address: quantumgosh@rediffmail.com.
authors.forename: N
authors.initials: N
authors.lastname: Shanmugam
authors.forename: S
authors.initials: S
authors.lastname: Cholan
authors.forename: N
authors.initials: N
authors.lastname: Kannadasan
authors.forename: K
authors.initials: K
authors.lastname: Sathishkumar
authors.forename: G
authors.initials: G
authors.lastname: Viruthagiri
mesh_terms: D002563:Cerium / Q000737:chemistry*; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D017550:Spectroscopy, Fourier Transform Infrared; D013440:Sulfides / Q000737:chemistry*; D014961:X-Ray Diffraction; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D049408:Luminescent Agents; D013440:Sulfides; D017967:Zinc Compounds; D002563:Cerium; C031238:zinc sulfide
keywords: EDS; FESEM; Flowerlike structure; HRTEM; ZnS nano structure